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1
JEE Main 2021 (Online) 25th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The major components of German Silver are :
A
Zn, Ni and Ag
B
Cu, Zn and Ni
C
Cu, Zn and Ag
D
Ge, Cu and Ag
2
JEE Main 2021 (Online) 25th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The method used for the purification of Indium is :
A
zone refining
B
vapour phase refining
C
liquation
D
van Arkel method
3
JEE Main 2021 (Online) 25th February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Ellingham diagram is a graphical representation of :
A
$$\Delta$$G vs P
B
$$\Delta$$G vs T
C
($$\Delta$$G $$-$$ T$$\Delta$$S) vs T
D
$$\Delta$$H vs T
4
JEE Main 2021 (Online) 24th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Math List - I with List - II.

List I (Metal) List II (Ores)
(a) Aluminium (i) Siderite
(b) Iron (ii) Calamine
(c) Copper (iii) Kaolinite
(d) Zinc (iv) Malachite


Choose the correct answer from the options given below :
A
(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
B
(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
C
(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
D
(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
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